<template>
  <div class="main">
    <a-form
      id="formLogin"
      class="user-layout-login"
      ref="formLogin"
      :form="form"
      @submit="handleSubmit"
    >
      <a-tabs
        :activeKey="customActiveKey"
        :tabBarStyle="{ textAlign: 'center'}"
        @change="handleTabClick"
      >
        <a-tab-pane key="tab1" tab="">
          <a-alert v-if="isLoginError" type="error" showIcon style="margin-bottom: 24px;" message="账户或密码错误（admin/ant.design )" />
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="账户: admin"
              v-decorator="[
                'username',
                {rules: [{ required: true, message: '请输入帐户名或邮箱地址' }, { validator: handleUsernameOrEmail }], validateTrigger: 'change'}
              ]"
            >
              <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-form-item>
            <a-input-password
              size="large"
              placeholder="密码: admin or ant.design"
              v-decorator="[
                'password',
                {rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur'}
              ]"
            >
              <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input-password>
          </a-form-item>
        </a-tab-pane>
        <!-- <a-tab-pane key="tab2" tab="手机号登录">
          <a-form-item>
            <a-input size="large" type="text" placeholder="手机号" v-decorator="['mobile', {rules: [{ required: true, pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号' }], validateTrigger: 'change'}]">
              <a-icon slot="prefix" type="mobile" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-row :gutter="16">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input size="large" type="text" placeholder="验证码" v-decorator="['captcha', {rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur'}]">
                  <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <a-button
                class="getCaptcha"
                tabindex="-1"
                :disabled="state.smsSendBtn"
                @click.stop.prevent="getCaptcha"
                v-text="!state.smsSendBtn && '获取验证码' || (state.time+' s')"
              ></a-button>
            </a-col>
          </a-row>
        </a-tab-pane> -->
      </a-tabs>

      <a-form-item>
        <a-checkbox v-decorator="['rememberMe', { valuePropName: 'checked' }]">自动登录</a-checkbox>
        <router-link
          :to="{ name: 'recover', params: { user: 'aaa'} }"
          class="forge-password"
          style="float: right;"
        >忘记密码</router-link>
      </a-form-item>

      <a-form-item style="margin-top:24px">
        <a-button
          size="large"
          type="primary"
          htmlType="submit"
          class="login-button"
          :loading="state.loginBtn"
          :disabled="state.loginBtn"
        >确定</a-button>
      </a-form-item>

      <!-- <div class="user-login-other">
        <span>其他登录方式</span>
        <a>
          <a-icon class="item-icon" type="alipay-circle"></a-icon>
        </a>
        <a>
          <a-icon class="item-icon" type="taobao-circle"></a-icon>
        </a>
        <a>
          <a-icon class="item-icon" type="weibo-circle"></a-icon>
        </a>
        <router-link class="register" :to="{ name: 'register' }">注册账户</router-link>
      </div> -->
    </a-form>

    <two-step-captcha
      v-if="requiredTwoStepCaptcha"
      :visible="stepCaptchaVisible"
      @success="stepCaptchaSuccess"
      @cancel="stepCaptchaCancel"
    ></two-step-captcha>
  </div>
</template>

<script>
    import md5 from 'md5'
    import TwoStepCaptcha from '@/components/tools/TwoStepCaptcha'
    import {
        mapActions
    } from 'vuex'
    import {
        timeFix
    } from '@/utils/util'
    import {
        getSmsCaptcha,
        get2step
    } from '@/api/login'

    export default {
        components: {
            TwoStepCaptcha
        },
        data() {
            return {
                customActiveKey: 'tab1',
                loginBtn: false,
                // login type: 0 email, 1 username, 2 telephone
                loginType: 0,
                isLoginError: false,
                requiredTwoStepCaptcha: false,
                stepCaptchaVisible: false,
                form: this.$form.createForm(this),
                state: {
                    time: 60,
                    loginBtn: false,
                    // login type: 0 email, 1 username, 2 telephone
                    loginType: 0,
                    smsSendBtn: false
                }
            }
        },
        created() {
            get2step({})
                .then(res => {
                    this.requiredTwoStepCaptcha = res.result.stepCode
                })
                .catch(() => {
                    this.requiredTwoStepCaptcha = false
                })
                // this.requiredTwoStepCaptcha = true
        },
        methods: {
            ...mapActions(['Login', 'Logout']),
            // handler
            handleUsernameOrEmail(rule, value, callback) {
                const {
                    state
                } = this
                const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
                if (regex.test(value)) {
                    state.loginType = 0
                } else {
                    state.loginType = 1
                }
                callback()
            },
            handleTabClick(key) {
                this.customActiveKey = key
                    // this.form.resetFields()
            },
            handleSubmit(e) {
                e.preventDefault()
                const {
                    form: {
                        validateFields
                    },
                    state,
                    customActiveKey,
                    Login
                } = this

                state.loginBtn = true

                const validateFieldsKey = customActiveKey === 'tab1' ? ['username', 'password'] : ['mobile', 'captcha']

                validateFields(validateFieldsKey, {
                    force: true
                }, (err, values) => {
                    if (!err) {
                        console.log('login form', values)
                        const loginParams = {...values
                        }
                        delete loginParams.username
                        loginParams[!state.loginType ? 'email' : 'username'] = values.username
                            // loginParams.password = md5(values.password)
                        Login(loginParams)
                            .then((res) => this.loginSuccess(res))
                            .catch(err => this.requestFailed(err))
                            .finally(() => {
                                state.loginBtn = false
                            })
                    } else {
                        setTimeout(() => {
                            state.loginBtn = false
                        }, 600)
                    }
                })
            },
            getCaptcha(e) {
                e.preventDefault()
                const {
                    form: {
                        validateFields
                    },
                    state
                } = this

                validateFields(['mobile'], {
                    force: true
                }, (err, values) => {
                    if (!err) {
                        state.smsSendBtn = true

                        const interval = window.setInterval(() => {
                            if (state.time-- <= 0) {
                                state.time = 60
                                state.smsSendBtn = false
                                window.clearInterval(interval)
                            }
                        }, 1000)

                        const hide = this.$message.loading('验证码发送中..', 0)
                        getSmsCaptcha({
                            mobile: values.mobile
                        }).then(res => {
                            setTimeout(hide, 2500)
                            this.$notification['success']({
                                message: '提示',
                                description: '验证码获取成功，您的验证码为：' + res.result.captcha,
                                duration: 8
                            })
                        }).catch(err => {
                            setTimeout(hide, 1)
                            clearInterval(interval)
                            state.time = 60
                            state.smsSendBtn = false
                            this.requestFailed(err)
                        })
                    }
                })
            },
            stepCaptchaSuccess() {
                this.loginSuccess()
            },
            stepCaptchaCancel() {
                this.Logout().then(() => {
                    this.loginBtn = false
                    this.stepCaptchaVisible = false
                })
            },
            loginSuccess(res) {
                console.log('loginSuccess', res)
                    // check res.homePage define, set $router.push name res.homePage
                    // Why not enter onComplete
                    /*
                    this.$router.push({ name: 'analysis' }, () => {
                      console.log('onComplete')
                      this.$notification.success({
                        message: '欢迎',
                        description: `${timeFix()}，欢迎回来`
                      })
                    })
                    */
                this.$router.push({
                        path: '/'
                    })
                    // 延迟 1 秒显示欢迎信息
                setTimeout(() => {
                    this.$notification.success({
                        message: '欢迎',
                        description: `${timeFix()}，欢迎回来`
                    })
                }, 1000)
                this.isLoginError = false
            },
            requestFailed(err) {
                console.log('requestFailed', err);
                this.isLoginError = true
                this.$notification['error']({
                    message: '错误',
                    description: ((err.response || {}).data || {}).message || '请求出现错误，请稍后再试',
                    duration: 4
                })
            }
        }
    }
</script>

<style lang="less" scoped>
    .user-layout-login {
        label {
            font-size: 14px;
        }
        .getCaptcha {
            display: block;
            width: 100%;
            height: 40px;
        }
        .forge-password {
            font-size: 14px;
        }
        button.login-button {
            padding: 0 15px;
            font-size: 16px;
            height: 40px;
            width: 100%;
        }
        .user-login-other {
            text-align: left;
            margin-top: 24px;
            line-height: 22px;
            .item-icon {
                font-size: 24px;
                color: rgba(0, 0, 0, 0.2);
                margin-left: 16px;
                vertical-align: middle;
                cursor: pointer;
                transition: color 0.3s;
                &:hover {
                    color: #1890ff;
                }
            }
            .register {
                float: right;
            }
        }
    }
</style>